JPH053970B2 - - Google Patents

Info

Publication number
JPH053970B2
JPH053970B2 JP63111139A JP11113988A JPH053970B2 JP H053970 B2 JPH053970 B2 JP H053970B2 JP 63111139 A JP63111139 A JP 63111139A JP 11113988 A JP11113988 A JP 11113988A JP H053970 B2 JPH053970 B2 JP H053970B2
Authority
JP
Japan
Prior art keywords
skin
resin
injection
mold
molded product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP63111139A
Other languages
Japanese (ja)
Other versions
JPS6485721A (en
Inventor
Tatsu Kai
Koichi Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP11113988A priority Critical patent/JPS6485721A/en
Publication of JPS6485721A publication Critical patent/JPS6485721A/en
Publication of JPH053970B2 publication Critical patent/JPH053970B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
    • B29C43/184—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould shaped by the compression of the material during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3444—Feeding the material to the mould or the compression means using pressurising feeding means located in the mould, e.g. plungers or pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C2043/3602—Moulds for making articles of definite length, i.e. discrete articles with means for positioning, fastening or clamping the material to be formed or preforms inside the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • B29C2043/3621—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices a plurality of individual elements acting on the material in the same or diferent directions, e.g. making tubular T-joints, profiles
    • B29C2043/3623—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices a plurality of individual elements acting on the material in the same or diferent directions, e.g. making tubular T-joints, profiles coupled on a support, e.g. plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 発明の目的 （産業上の利用分野） 本発明は表皮付き樹脂成形品の成形方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a method for molding a resin molded article with a skin.

（従来の技術及び発明が解決しようとする問題
点） 従来の表皮付き樹脂成形品は、樹脂基材の表面
に手作業で表皮を貼り付けることによつて製造さ
れていた。この製造方法には非能率的で作業時間
がかかり、製造コストも高くなるという問題点が
ある。(Prior Art and Problems to be Solved by the Invention) Conventional skinned resin molded products have been manufactured by manually attaching a skin to the surface of a resin base material. This manufacturing method has problems in that it is inefficient, takes time, and increases manufacturing costs.

そこで、この問題点を改善するために、表皮を
金型内にセツトしてその裏面に合成樹脂を射出成
形し、成形と表皮の貼り付けを同時に行うインモ
ールド成形法も考案されている。しかしながら、
表皮に大きな射出圧力が加わるため、ポリエステ
ル繊維、ナイロン繊維等の合成繊維よりなる布
や、ポリ塩化ビニル樹脂、ポリエチレン樹脂等よ
りなるシート等を表皮として使用すると、樹脂
熱、射出圧力等によつてその表皮がつぶれ、外観
が低下するという問題が残されていた。 Therefore, in order to improve this problem, an in-mold molding method has been devised in which the skin is set in a mold, a synthetic resin is injection molded on the back side of the mold, and the molding and the pasting of the skin are performed simultaneously. however,
Because large injection pressure is applied to the skin, if cloth made of synthetic fibers such as polyester fibers or nylon fibers or sheets made of polyvinyl chloride resin or polyethylene resin are used as the skin, the skin may be damaged by resin heat, injection pressure, etc. The problem remained that the skin was crushed and the appearance deteriorated.

発明の構成 （問題点を解決するための手段） 本発明は、下型に配設された所定の温度に加熱
された注入機構のポツト内に溶融樹脂を充填する
工程と、上型と下型の間に表皮を配設する工程
と、上型と下型とを型締めしてキヤビテイを形成
する工程と、注入機構のピストン部材を上昇させ
てキヤビテイ内の表皮の裏面に溶融樹脂を注入す
るとともに、該ピストン部材の上端面をキヤビテ
イと略面一に合わせる工程と、注入機構内に冷却
水を送水し樹脂成形品を固化する工程と、溶融樹
脂の固化後に両型を型開きして表皮付き樹脂成形
品を取外す工程とからなる方法を採用したもので
ある。Structure of the Invention (Means for Solving Problems) The present invention comprises a step of filling a pot of an injection mechanism disposed in a lower mold and heated to a predetermined temperature with molten resin, and A process of arranging a skin between the molds, a process of clamping the upper mold and a lower mold to form a cavity, and raising the piston member of the injection mechanism to inject molten resin onto the back surface of the skin inside the cavity. At the same time, there is a step of aligning the upper end surface of the piston member to be substantially flush with the cavity, a step of feeding cooling water into the injection mechanism to solidify the resin molded product, and a step of opening both molds after the molten resin has solidified to remove the skin. This method adopts a method consisting of a step of removing the attached resin molded product.

（作用） 所定の温度に加熱されている注入機構に溶融樹
脂が供給され、該注入機構のピストン部材を上昇
させてキヤビテイ内の表皮の裏面に溶融樹脂を注
入するとき、ポツトとピストン部材が溶融樹脂の
流路を形成しているので、広いランナ及びゲート
に相当する流路が得られ、小さな注入圧力で成形
することができる。(Function) When molten resin is supplied to the injection mechanism heated to a predetermined temperature and the piston member of the injection mechanism is raised to inject the molten resin onto the back surface of the skin inside the cavity, the pot and piston member melt. Since the resin flow path is formed, a wide flow path corresponding to a runner and a gate can be obtained, and molding can be performed with a small injection pressure.

また、上記注入の始期から中期において、表皮
は広い注入箇所から注入された溶融樹脂の熱で軟
化して伸び、上型の内面に押しつけられる。 Further, from the beginning to the middle of the injection, the skin is softened and stretched by the heat of the molten resin injected from the wide injection site, and is pressed against the inner surface of the upper mold.

注入の終期においては、溶融樹脂がキヤビテイ
内に充満するので、溶融樹脂及び表皮の全体に最
大の注入圧力がかかる。このとき、通常は各部に
等しい圧力がかかるものであるが、樹脂成形品の
形状が段差部を有する等の異形であると、圧力は
均一にかからず局部的に集中して表皮をつぶして
しまう傾向がある。しかしながら、本発明におい
てはポツトを広くできるため、異形の樹脂成形品
であつても各部にかかる圧力を均一化してその集
中を防止することができ、表皮の部分的なつぶれ
を防止することができる。 At the end of the injection, the cavity is filled with molten resin, so the maximum injection pressure is applied to the entire molten resin and skin. At this time, normally equal pressure is applied to each part, but if the shape of the resin molded product is irregular, such as having steps, the pressure will not be applied uniformly and will concentrate locally, crushing the skin. There is a tendency to put it away. However, in the present invention, since the pot can be made wider, the pressure applied to each part of the resin molded product can be made uniform and prevented from concentrating even in the case of irregularly shaped resin molded products, and partial collapse of the skin can be prevented. .

また、ピストン部材の上端面がキヤビテイと略
面一に合わされて、キヤビテイの一部を形成する
ので、成形後にランナーやゲート部分の付着しな
い成形品が成形される。従つて、成形後にランナ
ーやゲート部分を除去する必要がなく、更に成形
後に冷却水により樹脂形成品が冷却されるので、
成形品は急速に個化される。 Further, since the upper end surface of the piston member is aligned substantially flush with the cavity and forms a part of the cavity, a molded product without any runner or gate portion attached after molding is formed. Therefore, there is no need to remove the runner or gate portion after molding, and the resin molded product is cooled by cooling water after molding.
Molded parts are rapidly individualized.

（実施例） 以下、本発明を具体化した実施例を図面に従つ
て説明する。(Example) Hereinafter, an example embodying the present invention will be described with reference to the drawings.

第８図に示すように、本実施例によつて成形す
る表皮付き樹脂成形品６１はポリプロピレン樹脂
（PP）よりなる基材６２と、その表面に取着され
たポリエステル繊維よりなる布製の表皮６３とか
らなるものである。同基材６２は左右両側の斜状
部６４と、２つの平面部６５と、両平面部６５を
上下に隔てる段差部６６とからなつている。 As shown in FIG. 8, the resin molded article 61 with a skin formed according to this embodiment includes a base material 62 made of polypropylene resin (PP), and a cloth skin 63 made of polyester fiber attached to the surface of the base material 62. It consists of. The base material 62 is made up of diagonal portions 64 on both left and right sides, two flat portions 65, and a step portion 66 that vertically separates both flat portions 65.

また、本実施例に使用する樹脂成形装置の主要
部は、第１図に示すように枠体部Ａと、該枠体部
Ａに取付けられた金型部Ｂと、枠体部Ａの近傍に
設置され後述する型締め用シリンダや駆動装置を
作動させるための油圧ユニツトＣと、枠体部Ａに
取付けられ溶融樹脂を供給するための材料供給ユ
ニツトＤと、金型部Ｂの金型間に樹脂成形品６１
の表皮６３を供給するための表皮供給装置Ｅとか
らなつている。まず、これらの各部Ａ〜Ｅについ
て順に詳述しておく。 In addition, as shown in FIG. 1, the main parts of the resin molding apparatus used in this example are a frame part A, a mold part B attached to the frame part A, and the vicinity of the frame part A. A hydraulic unit C is installed in the mold section B to operate the mold clamping cylinder and drive device, which will be described later, a material supply unit D is attached to the frame body A and supplies molten resin, and a hydraulic unit C is installed in the mold part B to operate the mold clamping cylinder and drive device, which will be described later. Resin molded product 61
and a skin supply device E for supplying the skin 63. First, each of these parts A to E will be explained in detail in order.

枠体部Ａは、下方ベース１と、同下方ベース１
上に垂立した４本の支柱２と、同支柱２の上端に
水平に固定された天井部材３と、支柱２に一端が
固定されるとともに斜状枠体４に支持された突出
ベース５とから構成されている。 The frame body part A includes a lower base 1 and a lower base 1.
Four pillars 2 vertically extending above, a ceiling member 3 horizontally fixed to the upper ends of the pillars 2, and a protruding base 5 having one end fixed to the pillars 2 and supported by a diagonal frame 4. It consists of

金型部Ｂは、前記下方ベース１に取付けられた
型締め用シリンダ６と、支柱２にガイドされなが
ら型締用シリンダ６の作動ロツド６ａによつて上
下方向に往復動されるスライドベース７と、同ス
ライドベース７上に固定された垂直部材８と、同
垂直部材８の上端部に固定された下型（可動型）
９と、前記天井部材３の下面側に固定された上型
（固定型）１０と、前記下型９に設けられた左右
２つの注入機構１１と成形品取外し機構１２とか
ら構成されている。下型９と上型１０の間には前
記樹脂成形品６１の形状に対応するキヤビテイ２
６が形成され、２つの注入機構１１は各々下型９
のうち前記樹脂成形品６１の２つの平面部６５の
下面を形成する箇所に配設されている。また、上
型１０のうち前記各注入機構１１に対向する下面
部には２つの圧力検知器５１，５２が設けられ、
溶融樹脂の射出圧力を検知するようになつてい
る。 The mold section B includes a mold clamping cylinder 6 attached to the lower base 1, and a slide base 7 that is guided by the pillar 2 and reciprocated in the vertical direction by an operating rod 6a of the mold clamping cylinder 6. , a vertical member 8 fixed on the slide base 7, and a lower mold (movable mold) fixed on the upper end of the vertical member 8.
9, an upper mold (fixed mold) 10 fixed to the lower surface side of the ceiling member 3, two left and right injection mechanisms 11 provided on the lower mold 9, and a molded product removal mechanism 12. A cavity 2 corresponding to the shape of the resin molded product 61 is provided between the lower mold 9 and the upper mold 10.
6 is formed, and the two injection mechanisms 11 are respectively connected to the lower mold 9.
These are disposed at locations forming the lower surfaces of the two flat portions 65 of the resin molded product 61. Further, two pressure detectors 51 and 52 are provided on the lower surface portion of the upper mold 10 facing each of the injection mechanisms 11,
It is designed to detect the injection pressure of molten resin.

左右の各注入機構１１は、第２図に示すように
下型９の下面側に固定された断熱部材１１ａと、
断熱部材１１ａの内側に固定されたポツト１３
と、同ポツト１３を200〜220℃まで加熱するリン
グ状のヒータ１４と、同ポツト１３内に上下方向
に摺動可能に挿入されたピストン部材１６からな
る。 Each of the left and right injection mechanisms 11 includes a heat insulating member 11a fixed to the lower surface side of the lower mold 9, as shown in FIG.
Pot 13 fixed inside the heat insulating member 11a
It consists of a ring-shaped heater 14 that heats the pot 13 to 200 to 220 DEG C., and a piston member 16 inserted into the pot 13 so as to be slidable in the vertical direction.

同ピストン部材１６はその外周部に高周波加熱
用のコイル１５を備えた第１ピストン１６ａと、
同第１ピストン１６ａの下端にシール１７を介し
て螺着された第２ピストン１６ｂとからなる。両
ピストン１６ａ，１６ｂの内部には第２ピストン
１６ｂに出入口を有する循環通路１８が形成され
ている。なお、ピストン部材１６が第１ピストン
１６ａと第２ピストン１６ｂからなるのは高周波
加熱用コイル１５を装着するためであつて、ポツ
ト１３内周面に該コイル１５が装着できれば、ピ
ストン部材１６は一部材でもよい。 The piston member 16 includes a first piston 16a equipped with a high-frequency heating coil 15 on its outer periphery;
It consists of a second piston 16b screwed onto the lower end of the first piston 16a via a seal 17. A circulation passage 18 having an inlet and an outlet in the second piston 16b is formed inside both pistons 16a and 16b. The reason why the piston member 16 consists of the first piston 16a and the second piston 16b is to mount the high-frequency heating coil 15, and if the coil 15 can be mounted on the inner circumferential surface of the pot 13, the piston member 16 is It may be a member.

また、ピストン部材１６には断熱部材２１及び
連結部材１９を介して作動ロツド２２を備える油
圧シリンダ２３が連結されている。両注入機構１
１の油圧シリンダ２３は共に保持部材２４によつ
て保持されている。 Further, a hydraulic cylinder 23 having an actuating rod 22 is connected to the piston member 16 via a heat insulating member 21 and a connecting member 19. Both injection mechanisms 1
One hydraulic cylinder 23 is both held by a holding member 24.

そして、ピストン部材１６の上面はその上昇時
においてキヤビテイ２６の下面の略面一となり、
キヤビテイ２６を形成する一部となる。また下降
時にはその上面と前記ポツト１３とによつて円柱
状の空間２５が形成される。同空間２５には、後
述する材料供給ユニツトＤからの溶融樹脂が供給
されるようになつている。 The upper surface of the piston member 16 is substantially flush with the lower surface of the cavity 26 when the piston member 16 is raised;
It becomes a part of forming the cavity 26. Further, when descending, a cylindrical space 25 is formed between the upper surface and the pot 13. The space 25 is supplied with molten resin from a material supply unit D, which will be described later.

また、前記第１ピストン１６ａは外周部の高周
波加熱用コイル１５によつて常に暖められている
が、樹脂成形品６１の成形後には前記循環通路１
８に矢印方向に冷却水が送られることによつて冷
却される。この冷却によつて樹脂成形品６１が固
化して、冷却が不要になつたときは前記通路１８
に圧縮空気が送られ冷却水は除去される。従つ
て、ピストン部材１６は高周波加熱用コイル１５
の作用によつて再び温度が上昇する。 Furthermore, although the first piston 16a is always warmed by the high-frequency heating coil 15 on the outer periphery, after the resin molded product 61 is molded, the first piston 16a is
It is cooled by sending cooling water to 8 in the direction of the arrow. When the resin molded product 61 is solidified by this cooling and cooling is no longer necessary, the passage 18
compressed air is sent to and the cooling water is removed. Therefore, the piston member 16 is connected to the high frequency heating coil 15.
The temperature rises again due to the action of

一方、樹脂成形品取外し機構１２は、第１図に
示す通り下方ベース１上に取着された直立ロツド
２７と、第４図等に示す通り下型８が下降したと
きに直立ロツド２７の上端と当接しうる作動ロツ
ド２８と、下型９の内部において作動ロツド２８
の上端に連結され、コイルスプリング２９によつ
て下方に付勢されている押上げピン３０とから構
成されている。同樹脂成形品取外し機構１２は下
型９の下降時に押上げピン３０よつて樹脂成形品
６１を押上げ、該樹脂成形品６１を下型９から離
脱させるためのものである。 On the other hand, the resin molded product removal mechanism 12 includes an upright rod 27 attached to the lower base 1 as shown in FIG. an actuating rod 28 that can come into contact with the actuating rod 28;
The push-up pin 30 is connected to the upper end of the push-up pin 30 and is urged downward by a coil spring 29. The resin molded product removing mechanism 12 is for pushing up the resin molded product 61 using the push-up pin 30 when the lower mold 9 is lowered, and detaching the resin molded product 61 from the lower mold 9.

油圧ユニツトＣは型締め用シリンダ６、油圧シ
リンダ２３及び後述する注入用シリンダ４５に図
示しない部分で連結され、これらのシリンダを作
動させるためのものであつて、通常の油圧ユニツ
トを用いることができる。 The hydraulic unit C is connected to a mold clamping cylinder 6, a hydraulic cylinder 23, and an injection cylinder 45 (described later) at a portion not shown, and is used to operate these cylinders, and an ordinary hydraulic unit can be used. .

材料供給ユニツトＤは第１図及びその部分平面
図である第３図に示すようにプレート３６上に、
可塑化シリンダ４２、同可塑化シリンダ４２内の
スクリユーを駆動させるモータ３８、可塑化シリ
ンダ４２内へペレツト状の樹脂を供給するホツパ
３２、可塑化された樹脂を内部に蓄える供給プラ
ンジヤー４１、及び供給プランジヤー４１のピス
トンロツド４４を駆動させるシリンダ装置４５が
装着されている。同シリンダ装置４５は供給プラ
ンジヤー４１から前記注入機構１１の空間２５内
に溶融樹脂を供給するものである。 As shown in FIG. 1 and FIG. 3, which is a partial plan view thereof, the material supply unit D is arranged on a plate 36.
The plasticizing cylinder 42, the motor 38 that drives the screw in the plasticizing cylinder 42, the hopper 32 that supplies pellet-shaped resin into the plasticizing cylinder 42, the supply plunger 41 that stores plasticized resin inside, and the supply A cylinder device 45 for driving the piston rod 44 of the plunger 41 is mounted. The cylinder device 45 supplies molten resin from the supply plunger 41 into the space 25 of the injection mechanism 11.

前記下方ベース１に固定されている突出ベース
５には、ボールネジ機構を介して前記プレート３
６が取付けられているとともに、前記ボールネジ
機構のスクリユー３５を回動させるためのモータ
３７が固定されている。従つて、プレート３６上
に装着された材料供給ユニツトＤ全体は、モータ
３８を作動させることによりボールネジ機構のス
クリユー３５に沿つて往復動可能である。 The protruding base 5 fixed to the lower base 1 is connected to the plate 3 via a ball screw mechanism.
6 is attached, and a motor 37 for rotating the screw 35 of the ball screw mechanism is fixed. Therefore, the entire material supply unit D mounted on the plate 36 can be reciprocated along the screw 35 of the ball screw mechanism by operating the motor 38.

可塑化シリンダ４２内で可塑化溶融された樹脂
材料はチエツクバルブ３９を通つて供給プランジ
ヤー４１内に蓄えられ、プレート３６が前進した
状態でシリンダ装置４５が作動されてピストンロ
ツド４４が押圧されると、第４図に示すように注
入口４３を通つて各注入機構１１の空間２５内に
供給されるようになつている。 The plasticized and melted resin material in the plasticizing cylinder 42 passes through the check valve 39 and is stored in the supply plunger 41, and when the cylinder device 45 is actuated and the piston rod 44 is pressed while the plate 36 is advanced. As shown in FIG. 4, the liquid is supplied into the space 25 of each injection mechanism 11 through an injection port 43.

また、前記ホツパ３２の上方には大型のホツパ
タンク３１と、シリンダ３３によつて開閉される
シヤツタ３４とが配設され、前記キヤビテイ２６
の容量に見合つたペレツト状の樹脂材料をシヤツ
タ３４の開閉により小出しに供給するようになつ
ている。 Further, a large hopper tank 31 and a shutter 34 opened and closed by a cylinder 33 are disposed above the hopper 32, and a shutter 34 is provided above the hopper 32.
A pellet-like resin material corresponding to the capacity of the shutter 34 is supplied in small quantities by opening and closing the shutter 34.

表皮供給装置Ｅは樹脂成形品６１の表皮６３を
挟持して水平に支持するための支持枠５３と、同
支持枠５３及び表皮６３を下型９と上型１０の間
に往復動可能に移動させるための駆動機構（図示
せず）とから構成されており、前記金型部Ｂの側
方に設けられている。 The skin supply device E includes a support frame 53 for sandwiching and horizontally supporting the skin 63 of the resin molded product 61, and moves the support frame 53 and the skin 63 between the lower mold 9 and the upper mold 10 in a reciprocating manner. It consists of a drive mechanism (not shown) for causing the mold part B to move, and is provided on the side of the mold part B.

なお、下型９と上型１０の各縁部には前記支持
枠５３を挟持するための凹部５４が形成されてい
る。 Note that a recess 54 for holding the support frame 53 is formed at each edge of the lower mold 9 and the upper mold 10.

次に、以上の通り構成された樹脂成形装置を使
用して表皮付き樹脂成形品６１を成形する方法に
ついて説明する。 Next, a method of molding the skinned resin molded product 61 using the resin molding apparatus configured as described above will be described.

［溶融樹脂の充填工程］ まず、第４図に示すように、下型９を下降させ
た状態でモータ３７を駆動してスクリユ３５を回
転させ、プレート３６上に設けられた材料供給ユ
ニツトＤを下型９と上型１０の間に前進させる。
このとき材料供給ユニツトＤでは、約１チヤージ
分のペレツト状樹脂材料がホツパタンク３１から
ホツパ３２内に供給され、続いて可塑化シリンダ
４２内へ送られて同シリンダ４２内のスクリユー
により可塑化溶融され、チエツクバルブ３９を通
つて供給プランジヤー４１内に蓄えられている。
そして、注入口４３が下型９に設けられた左側の
注入機構１１の空間２５上にきたときに、材料供
給ユニツトＤの前進を停止させる。[Filling process of molten resin] First, as shown in FIG. 4, with the lower die 9 lowered, the motor 37 is driven to rotate the screw 35, and the material supply unit D provided on the plate 36 is It is advanced between the lower mold 9 and the upper mold 10.
At this time, in the material supply unit D, approximately one charge of pellet-like resin material is supplied from the hopper tank 31 into the hopper 32, and then sent into the plasticizing cylinder 42 where it is plasticized and melted by the screw inside the cylinder 42. , are stored in supply plunger 41 through check valve 39.
Then, when the injection port 43 reaches the space 25 of the left injection mechanism 11 provided in the lower mold 9, the forward movement of the material supply unit D is stopped.

続いて、シリンダ装置４５を作動させてピスト
ンロツド４４を押圧し、供給プランジヤー４１内
の溶融樹脂を前記の如く所定温度に加熱されてい
る左側の注入機構１１における約１回の注入分だ
け前記空間２５内へ充填する。 Subsequently, the cylinder device 45 is operated to press the piston rod 44, and the molten resin in the supply plunger 41 is pumped into the space 25 by approximately one injection into the left injection mechanism 11, which is heated to a predetermined temperature as described above. Fill inside.

次に、モータ３７を逆転させて材料供給ユニツ
トＤを後退させ、注入口４３が右側の注入機構１
１の空間２５上にきたときに、同材料供給ユニツ
トＤの後退を停止させる。 Next, the motor 37 is reversed to move the material supply unit D backward, so that the injection port 43 is connected to the injection mechanism 1 on the right side.
When the material supply unit D reaches the space 25 of No. 1, the retraction of the material supply unit D is stopped.

そして、左側の場合と同様にシリンダ装置４５
を作動させて、供給プランジヤー４１内の溶融樹
脂を前記同様に加熱されている右側の注入機構１
１の空間２５内へ充填する。 Then, as in the case on the left side, the cylinder device 45
is activated to transfer the molten resin in the supply plunger 41 to the injection mechanism 1 on the right side which is heated in the same manner as described above.
The space 25 of No. 1 is filled.

以上のようにして左右両側の空間２５内に供給
された溶融樹脂の総量は、キヤビテイ２６内にお
いて樹脂成形品６１の基材６２を形成するのに必
要な量にほぼ等しい。 The total amount of molten resin supplied into the left and right spaces 25 as described above is approximately equal to the amount required to form the base material 62 of the resin molded product 61 within the cavity 26.

その後、さらにモータ３７を逆転させて材料供
給ユニツトＤを上型１０と下型９の間から後退さ
せる。そして、同時に次回の充填のために、前述
したホツパタンク３１から供給プランジヤー４１
内までの樹脂材料の供給・溶融工程を行う。 Thereafter, the motor 37 is further reversed to move the material supply unit D back from between the upper mold 10 and the lower mold 9. At the same time, for the next filling, the supply plunger 41 is transferred from the hopper tank 31 mentioned above.
Supply and melt the resin material to the inside.

［表皮の配置工程］ 表皮６３は第１図に示すように予め支持枠５３
に挟着しておく。前述の通り、左右両側の空間２
５内に溶融樹脂を供給して材料供給ユニツトＤを
後退させた後は、第５図に示すように、直ちに同
支持枠５３及び表皮６３を移動させて、下型９と
上型１０の間に配置させる。[Skin Arrangement Step] The skin 63 is placed on the support frame 53 in advance as shown in FIG.
Place it between the two. As mentioned above, space 2 on both the left and right sides
After supplying the molten resin into the mold 5 and retracting the material supply unit D, as shown in FIG. to be placed.

［型締め工程］ 次に、第６図に示すように、型締めシリンダ６
を作動させて下型９を上昇させ、上型１０に対し
型締めしてキヤビテイ２６を形成する。このと
き、前記表皮供給装置Ｅの支持枠５３は両型９，
１０の縁部に形成された凹部５４に嵌合して挟持
される。また、支持枠６３に挟持された表皮６３
は両型９，１０に挟み付けられるとともに、キヤ
ビテイ２６内においては同キヤビテイ形状にほぼ
対応する形状に変形する。[Mold clamping process] Next, as shown in FIG.
is operated to raise the lower mold 9 and clamp it against the upper mold 10 to form the cavity 26. At this time, the supporting frame 53 of the skin supplying device E has both molds 9,
It fits into a recess 54 formed on the edge of the holder 10 and is held therebetween. In addition, the skin 63 held between the support frame 63
is sandwiched between the molds 9 and 10, and is deformed within the cavity 26 into a shape that approximately corresponds to the shape of the cavity.

なお、両型９，１０はその内部に各々配設され
た冷却水通路２０に冷却水を流すことによつて常
に冷却されているが、注入前における溶融樹脂は
断熱部材１２を介して設けられたポツト１３の内
部にあるため冷却されにくい。さらに、同ポツト
１３はリング状のヒータ１４により200〜220℃位
まで加熱されており、ピストン部材１６は高周波
加熱用コイル１５で常に暖められているので、溶
融樹脂が固化することはない。 Note that both molds 9 and 10 are constantly cooled by flowing cooling water through cooling water passages 20 provided inside each mold, but the molten resin before injection is provided through a heat insulating member 12. Since it is located inside the pot 13, it is difficult to cool down. Further, the pot 13 is heated to about 200 to 220°C by a ring-shaped heater 14, and the piston member 16 is constantly warmed by a high-frequency heating coil 15, so that the molten resin does not solidify.

［溶融樹脂の注入工程］ 続いて、第７図に示すように左右両側の注入機
構１１の油圧シリンダ２３を作動させて各ピスト
ン部材１６を上昇させることにより、各ポツト１
３内の溶融樹脂を前記キヤビテイ２６内の表皮６
３の裏面に注入する。[Process of Injecting Molten Resin] Next, as shown in FIG.
The molten resin in 3 is transferred to the skin 6 in the cavity 26.
Inject into the back side of 3.

このとき、ポツト１３とピストン部材１６が材
料流路を形成しているので、広いランナ及びゲー
トに相当する流路が得られ、小さな注入圧力で成
形することができる。この発明ではランナ及びゲ
ートに相当する流路を可及的に大きくすることが
できる。その場合、注入圧力を一層低下させるこ
とができる。 At this time, since the pot 13 and the piston member 16 form a material flow path, a wide flow path corresponding to a runner and a gate is obtained, and molding can be performed with a small injection pressure. In this invention, the flow paths corresponding to the runners and gates can be made as large as possible. In that case, the injection pressure can be further reduced.

また、上記注入の始期から中期において、左側
の注入機構１１から注入された溶融樹脂は表皮６
３に当たつて両側方に流れ、基材６２のうち左側
の平面部６５、左側の斜状部６４及び段差部６６
となるべき部分を満たしていく。一方、右側の注
入機構１１から注入された溶融樹脂は表皮６３に
当たつてから基材６２のうち右側の平面部６５、
右側の斜状部６４及び段差部６６となるべき部分
を満たし、段差部６６において前記左側の注入機
構１１から注入された溶融樹脂と合流する。 In addition, from the beginning to the middle of the injection, the molten resin injected from the injection mechanism 11 on the left side is transferred to the epidermis 6.
3 and flows to both sides of the base material 62, such as a flat portion 65 on the left side, a diagonal portion 64 on the left side, and a step portion 66 on the left side.
We will fulfill the parts that should become. On the other hand, the molten resin injected from the injection mechanism 11 on the right side hits the skin 63 and then the flat part 65 on the right side of the base material 62,
It fills the right side oblique part 64 and the part to become the stepped part 66, and merges with the molten resin injected from the left injection mechanism 11 at the stepped part 66.

表皮６３は溶融樹脂の熱で軟化して伸び易くな
り、上型１０の内面に押しつけられるとともに、
溶融樹脂との摩擦によつてその流動方向に引張ら
れる。 The skin 63 is softened by the heat of the molten resin and becomes easy to stretch, and is pressed against the inner surface of the upper mold 10,
It is pulled in the direction of flow by friction with the molten resin.

特に、本実施例のように表皮６３としてポリエ
ステル繊維よりなる布を使用した場合、その他、
ナイロン繊維等の合成繊維よりなる布や、ポリ塩
化ビニル樹脂、ポリエチレン樹脂等よりなるシー
ト等を使用した場合であつても、表皮６３の前記
変形等は効果的に防止されるので、良好な外観が
得られる。 In particular, when a cloth made of polyester fiber is used as the outer skin 63 as in this embodiment,
Even when cloth made of synthetic fibers such as nylon fibers, sheets made of polyvinyl chloride resin, polyethylene resin, etc. are used, the deformation of the skin 63 is effectively prevented, resulting in a good appearance. is obtained.

さらに、注入の終期においては、溶融樹脂がキ
ヤビテイ２６内に充満するので、溶融樹脂及び表
皮６３の全体に最大の注入圧力がかかる。このと
き、通常は各部に等しい圧力がかかるものである
が、本実施例のように樹脂成形品６１の形状が段
差部６６を有する等の異形であると、圧力は均一
にかからず局部的に集中して表皮６１をつぶして
しまう虞れがある。しかしながら、本実施例にお
いては広い注入箇所から圧力をかけるため、異形
の樹脂成形品６１であつても各部にかかる圧力を
均一化してその集中を防止することができ、表皮
６１の部分的なつぶれを防止することができる。 Furthermore, at the end of the injection, the cavity 26 is filled with the molten resin, so the maximum injection pressure is applied to the entire molten resin and the skin 63. At this time, normally equal pressure is applied to each part, but if the resin molded product 61 has an irregular shape such as having a stepped part 66 as in this example, the pressure is not applied uniformly and may be localized. There is a possibility that the epidermis 61 may be crushed by concentrating on the particles. However, in this embodiment, pressure is applied from a wide injection point, so even if the resin molded product 61 has an irregular shape, the pressure applied to each part can be made uniform and the pressure can be prevented from concentrating. can be prevented.

従つて、本実施例のように圧力によつて変形し
やすい表皮６１を使用するときは、そのつぶれを
防止するのに溶融樹脂を広い注入箇所から可及的
速やかに注入できるという本実施例が特に有効で
ある。 Therefore, when using the skin 61 which is easily deformed by pressure as in the present embodiment, the present embodiment is such that the molten resin can be injected from a wide injection point as quickly as possible in order to prevent the skin from being crushed. Particularly effective.

また、注入の末期において、ピストン部材６１
の上端面がキヤビテイ２６と略面一に合わされ
て、キヤビテイ２６の一部を形成したときに注入
は完了する。従つて、成形後にランナーやゲート
部分の付着しない樹脂成形品６１が成形されるの
で、成形後にランナーやゲート部分を除去する必
要がない。 Also, at the end of the injection, the piston member 61
The implantation is complete when the upper end surface of the injector is substantially flush with the cavity 26 to form a portion of the cavity 26. Therefore, since the resin molded product 61 to which the runner and gate portion do not adhere after molding is molded, there is no need to remove the runner and gate portion after molding.

ところで、前記溶融樹脂の注入時においては上
型１０に設けられた圧力検知器５１，５２を利用
することによつて、前記注入圧力の制御を行うこ
ともできる。 Incidentally, during the injection of the molten resin, the injection pressure can also be controlled by using pressure detectors 51 and 52 provided on the upper mold 10.

すなわち、左右両側の圧力検知器５１，５２は
各注入機構１１の直ぐ上方における溶融樹脂の圧
力を検出して、両側の樹脂圧力のバランスがくず
れると、該圧力が高い側の注入機構１１における
油圧シリンダ２３を制御してその注入圧力を下げ
たり、該圧力が低い方の注入機構１１における油
圧シリンダ２３を制御してその注入圧力を上げた
りすることができる。本実施例では前述したよう
に根本的に樹脂圧力の不均一は起りにくいのであ
るが、前記の通り圧力検知器５１，５２により注
入圧力を制御することによつて、溶融樹脂の圧力
をさらに均一に維持させることができる。従つ
て、表皮６３の保護の完全が図られる。 That is, the pressure detectors 51 and 52 on both the left and right sides detect the pressure of the molten resin immediately above each injection mechanism 11, and when the resin pressure on both sides is unbalanced, the hydraulic pressure in the injection mechanism 11 on the side where the pressure is higher is increased. It is possible to control the cylinder 23 to lower its injection pressure, or to control the hydraulic cylinder 23 in the injection mechanism 11 whose pressure is lower to increase its injection pressure. In this embodiment, as described above, fundamentally non-uniform resin pressure is unlikely to occur, but by controlling the injection pressure using the pressure detectors 51 and 52 as described above, the pressure of the molten resin can be made even more uniform. can be maintained. Therefore, the epidermis 63 is completely protected.

前記注入時において、上型１０、下型９は常に
冷却されているので、キヤビテイ２６に広い注入
箇所から注入された溶融樹脂は固化を始める。と
ころが、ピストン部材１６は高周波加熱用コイル
１５で常に暖められているので、ピストン部材１
６の上端面近傍の溶融樹脂は固化を始めない。そ
こで、注入完了と同時にピストン部材１６内の循
環通路１８に冷却水を送つて、ピストン部材１６
を冷却させ溶融樹脂の急速な固化を図る。 During the injection, the upper mold 10 and the lower mold 9 are constantly cooled, so the molten resin injected into the cavity 26 from a wide injection point begins to solidify. However, since the piston member 16 is always warmed by the high-frequency heating coil 15, the piston member 1
The molten resin near the upper end surface of No. 6 does not begin to solidify. Therefore, at the same time as the injection is completed, cooling water is sent to the circulation passage 18 inside the piston member 16.
to rapidly solidify the molten resin.

以上の注入工程により、溶融樹脂は表皮６３の
裏面に当接・固化して基材６２となり表皮６３に
取着される。特に、本実施例では表皮６３として
布を使用しているので、その織り目に溶融樹脂が
浸透する。従つて、表皮６３と基材６２とはアン
カー効果によつて強固に接合される。 Through the above injection process, the molten resin comes into contact with the back surface of the skin 63 and solidifies to become the base material 62 and is attached to the skin 63. In particular, since cloth is used as the skin 63 in this embodiment, the molten resin penetrates into the weave. Therefore, the skin 63 and the base material 62 are firmly joined by the anchor effect.

［樹脂成形品の取外し工程］ 溶融樹脂が固化して樹脂成形品６１が成形され
ると、第８図に示すように型締め用シリンダ６を
作動させて下型９を下降させ、型開きを行う。す
ると、下方ベース１の直立ロツド２７は樹脂成形
品取外し機構１２の作動ロツド２８に当接して、
押上げピン３０をコイルスプリング２９の弾性力
に抗して上昇させるので、樹脂成形品６１は下型
９から自動的に離型される。[Removal process of resin molded product] When the molten resin is solidified and the resin molded product 61 is molded, the mold clamping cylinder 6 is operated to lower the lower mold 9 and the mold is opened, as shown in FIG. conduct. Then, the upright rod 27 of the lower base 1 comes into contact with the actuating rod 28 of the resin molded product removal mechanism 12, and
Since the push-up pin 30 is raised against the elastic force of the coil spring 29, the resin molded product 61 is automatically released from the lower mold 9.

このとき、両注入機構１１においては油圧シリ
ンダ２３を作動させてピストン１６を下降させる
とともに、前記循環通路１８に圧縮空気を送つて
内部に残る冷却水を排除し、冷却水によるピスト
ン１６の冷却を中止する。従つて、ピストン１６
は高周波加熱用コイル１５によつて再び加熱さ
れ、もとの状態に戻る。 At this time, in both injection mechanisms 11, the hydraulic cylinders 23 are operated to lower the piston 16, and compressed air is sent to the circulation passage 18 to remove the cooling water remaining inside, so that the piston 16 is cooled by the cooling water. Abort. Therefore, the piston 16
is heated again by the high-frequency heating coil 15 and returns to its original state.

［表皮の不要部分の切断工程］ 第８図に示すように、離型された樹脂成形品６
１には、両型９，１０の間に挟持されていた不要
部分の表皮６３が付着している。従つて、離型後
に同不要部分を切断して除去すれば、表皮付き樹
脂成形品６１が完成する。[Process of cutting unnecessary parts of the skin] As shown in FIG.
The unnecessary part of the skin 63 that was sandwiched between the molds 9 and 10 is attached to the mold 1. Therefore, by cutting and removing the unnecessary portions after releasing the mold, the skinned resin molded product 61 is completed.

以上の工程によつて、表皮付き樹脂成形品６１
の成形の１サイクルが終了する。 Through the above steps, the skinned resin molded product 61
One cycle of molding is completed.

なお、本発明は前記実施例の構成に限定される
ものではなく、例えば以下のように発明の趣旨か
ら逸脱しない範囲で任意に変更して具体化するこ
ともできる。 It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and may be modified and embodied as desired without departing from the spirit of the invention, for example, as described below.

(1) 注入機構１１は樹脂成形品の寸法・形状に応
じて下型９の任意の形状、大きさ、箇所に適宜
設けることができる。(1) The injection mechanism 11 can be appropriately provided in any shape, size, and location of the lower mold 9 depending on the size and shape of the resin molded product.

(2) 圧力検知器５０，５１及びそれらによる前記
注入圧力の制御は省略してもよい。(2) The pressure detectors 50, 51 and the control of the injection pressure by them may be omitted.

発明の効果 以上詳述したように本発明では広い流路から溶
融樹脂を注入するので、樹脂形成品に取着される
表皮の変形を防止し、同成形品の外観を良好に保
つことができる。又本発明では前記したように、
所定の温度に加熱された注入機構に溶融樹脂を充
填するので、充填された樹脂が固化することな
く、更に成形後には冷却水で冷却するので成形品
の固化が早められ、サイクルタイムを短縮するこ
とができるという優れた効果を発揮する。Effects of the Invention As detailed above, in the present invention, the molten resin is injected through a wide channel, so deformation of the skin attached to the resin molded product can be prevented, and the appearance of the molded product can be maintained in good condition. . Further, in the present invention, as described above,
Molten resin is filled into the injection mechanism heated to a predetermined temperature, so the filled resin does not solidify. Furthermore, after molding, it is cooled with cooling water, which accelerates the solidification of the molded product and shortens cycle time. It has an excellent effect of being able to

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の実施例に使用する成形装置の
全体を一部の断面部分とともに示す正面図、第２
図は同装置の要部拡大断面図、第３図は同装置の
材料供給ユニツトの平面図、第４〜８図は同装置
を使用して行う表皮付き樹脂成形品の成形方法の
各工程を示し、第４図は溶融樹脂の充填工程を示
す要部断面図、第５図は表皮の配置工程を示す要
部断面図、第６図は型締め工程を示す要部断面
図、第７図は溶融樹脂の注入工程を示す要部断面
図、第８図は樹脂製品の取外し工程を示す要部断
面図である。 ９……下型、１０……上型、１１……注入機
構、１３……ポツト、１６……ピストン部材、２
６……キヤビテイ、６１……表皮付き樹脂成形
品、６３……表皮。 Fig. 1 is a front view showing the entire molding apparatus used in the embodiment of the present invention together with a partial cross section;
The figure is an enlarged sectional view of the main parts of the same device, Figure 3 is a plan view of the material supply unit of the same device, and Figures 4 to 8 show each step of the method for molding a resin molded product with a skin using the same device. 4 is a cross-sectional view of the main part showing the molten resin filling process, FIG. 5 is a cross-sectional view of the main part showing the skin arrangement process, FIG. 6 is a cross-sectional view of the main part showing the mold clamping process, and FIG. FIG. 8 is a cross-sectional view of a main part showing a step of injecting molten resin, and FIG. 8 is a cross-sectional view of a main part showing a step of removing a resin product. 9... Lower mold, 10... Upper mold, 11... Injection mechanism, 13... Pot, 16... Piston member, 2
6...Cavity, 61...Resin molded product with skin, 63...Skin.

Claims (1)

【特許請求の範囲】[Claims] １ 下型９に配設され所定の温度に加熱された注
入機構１１のポツト１３内に溶融樹脂を充填する
工程と、上型１０と下型９の間に表皮６３を配設
する工程と、上型１０と下型９とを型締めしてキ
ヤビテイ２６を形成する工程と、注入機構１１の
ピストン部材１６を上昇させてキヤビテイ２６内
の表皮６３の裏面に溶融樹脂を注入するととも
に、該ピストン部材１６の上端面をキヤビテイ２
６と略面一に合わせる工程と、注入機構１１内に
冷却水を送水し樹脂成形品６１を固化する工程
と、溶融樹脂の固化後に両型９，１０を型開きし
て表皮付き樹脂成形品６１を取外す工程とよりな
る表皮付き樹脂成形品の成形方法。1. A step of filling the pot 13 of the injection mechanism 11 disposed in the lower mold 9 and heated to a predetermined temperature with molten resin, and a step of disposing a skin 63 between the upper mold 10 and the lower mold 9, A step of clamping the upper mold 10 and the lower mold 9 to form the cavity 26, and raising the piston member 16 of the injection mechanism 11 to inject molten resin into the back surface of the skin 63 inside the cavity 26, and The upper end surface of the member 16 is connected to the cavity 2.
6, a step of feeding cooling water into the injection mechanism 11 to solidify the resin molded product 61, and a step of opening both molds 9 and 10 after the molten resin has solidified to form a resin molded product with a skin. A method for molding a resin molded product with a skin, comprising the step of removing 61.
JP11113988A 1988-05-06 1988-05-06 Molding method of resin molded product with skin Granted JPS6485721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11113988A JPS6485721A (en) 1988-05-06 1988-05-06 Molding method of resin molded product with skin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11113988A JPS6485721A (en) 1988-05-06 1988-05-06 Molding method of resin molded product with skin

Publications (2)

Publication Number Publication Date
JPS6485721A JPS6485721A (en) 1989-03-30
JPH053970B2 true JPH053970B2 (en) 1993-01-19

Family

ID=14553447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11113988A Granted JPS6485721A (en) 1988-05-06 1988-05-06 Molding method of resin molded product with skin

Country Status (1)

Country Link
JP (1) JPS6485721A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113148C2 (en) * 1991-04-23 1995-06-14 Krauss Maffei Ag Device for producing laminated molded parts from thermoplastic material
US5204127A (en) * 1991-05-10 1993-04-20 Composite Products, Inc. Compression molding apparatus
KR100708899B1 (en) * 2005-05-25 2007-04-18 김현태 The mold for adhesive and molding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6260614A (en) * 1985-09-11 1987-03-17 Toyoda Gosei Co Ltd Molding method of resin molded article with skin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6260614A (en) * 1985-09-11 1987-03-17 Toyoda Gosei Co Ltd Molding method of resin molded article with skin

Also Published As

Publication number Publication date
JPS6485721A (en) 1989-03-30

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